Table 2 Association of TST and QFT-GIT results with demographic and occupational characteristics of TST-positive HCWs population
Characteristics | Total n. (%) | TST/IGRA | p-value | |
|---|---|---|---|---|
+/+ n. (%) | +/− n. (%) | |||
Female | 97 (68.3) | 22 (22.7) | 75 (77.3) | 0.304 |
Male | 45 (31.7) | 14 (31.1) | 31 (68.9) | |
Age, years | ||||
19–29 | 2 (1.4) | 0 (0.0) | 2 (100.0) | 0.272 |
30–39 | 40 (28.2) | 8 (20.0) | 32 (80.0) | |
40–49 | 50 (35.2) | 10 (20.0) | 40 (80.0) | |
50–59 | 43 (30.3) | 15 (34.9) | 28 (65.1) | |
≥ 60 | 7 (4.9) | 3 (42.9) | 4 (57.1) | |
Place of birth | ||||
High endemic | 14 (9.8) | 4 (28.6) | 10 (71.4) | 0.752 |
Low endemic | 128 (90.2) | 32 (25.0) | 96 (75.0) | |
BCG vaccination | ||||
yes | 73 (51.4) | 10 (13.7) | 63 (86.3) | <0.001 |
no | 36 (25.3) | 17 (47.2) | 19 (52.8) | |
unknown | 33 (23.3) | 9 (22.3) | 24 (72.7) | |
Time since BCG vaccination, years | ||||
< 10 | 3 (4.1) | 1 (33.3) | 2 (66.7) | 0.184 |
10–14 | 13 (17.8) | 3 (23.1) | 10 (76.9) | |
≥ 15 | 57 (40.1) | 6 (10.5) | 51 (89.5) | |
Previous TST | ||||
yes | 95 (66.9) | 23 (24.2) | 72 (75.8) | 0.685 |
no | 47 (33.1) | 13 (27.6) | 34 (72.4) | |
TB contacts | ||||
yes | 32 (22.5) | 7 (21.8) | 25 (78.2) | 0.817 |
no | 110 (77.5) | 29 (26.4) | 81 (73.6) | |
Job category | ||||
Physician | 15 (10.6) | 4 (26.7) | 11 (73.3) | 0.555 |
Nurse | 66 (46.5) | 13 (19.7) | 53 (80.3) | |
Nurse assistant | 29 (20.4) | 8 (28.6) | 20 (71.4) | |
Student | 12 (8.5) | 4 (33.3) | 8 (66.7) | |
other | 20 (14.0) | 7 (35.0) | 13 (65.0) | |
Ward | ||||
High TB risk | 15 (10.6) | 3 (20.0) | 12 (80.0) | 0.760 |
Low TB risk | 127 (89.4) | 33 (26.0) | 94 (74.0) | |